天氣小觀:春末大環境,一週後西伯利亞冷高急衝 - 颱風討論
By Zenobia
at 2022-05-05T15:05
at 2022-05-05T15:05
Table of Contents
天氣小觀:春末梅雨季大環境,一週後西伯利亞冷高壓急衝
最新模式預報,竟然出現驚奇預報,
一週後,約1040百帕的西伯利亞冷高壓竟從蒙古急衝東亞,
就只差一點,就變成蒙古冷高壓南下的冷鋒過境與東北季風報到了;
好加在,
孟加拉灣西南季風爆發後,南海北部的偏南風很爭氣,擋住東北冷風南下,
形成一道梅雨鋒面橫在台灣上空,沒有變成冷鋒通過台灣繼續往南,
不然就真的是嚇一跳的冬季大環境再現了;
1. 冬季大環境,東亞南北溫度分布呈現明顯的北冷南熱。
2. 春末梅雨季大環境,東亞南北溫度分布差距縮小,甚至反轉。
3. 夏初梅雨季大環境,東亞南北溫度分布反轉,北熱南冷。(真正的東亞梅雨季)
值得注意的是,迄今、未來一週等短期內,北方大氣高空依舊不見阻塞高壓,
這表示還是春末梅雨季大環境 - 屬於混亂的高空環境,
用一句話來說就如同春天後母心;
於是未來一週,
冷暖互換,每天都有機會下點雨,但又好像不太會。
(最近忙,簡單說說囉)
--
最新模式預報,竟然出現驚奇預報,
一週後,約1040百帕的西伯利亞冷高壓竟從蒙古急衝東亞,
就只差一點,就變成蒙古冷高壓南下的冷鋒過境與東北季風報到了;
好加在,
孟加拉灣西南季風爆發後,南海北部的偏南風很爭氣,擋住東北冷風南下,
形成一道梅雨鋒面橫在台灣上空,沒有變成冷鋒通過台灣繼續往南,
不然就真的是嚇一跳的冬季大環境再現了;
1. 冬季大環境,東亞南北溫度分布呈現明顯的北冷南熱。
2. 春末梅雨季大環境,東亞南北溫度分布差距縮小,甚至反轉。
3. 夏初梅雨季大環境,東亞南北溫度分布反轉,北熱南冷。(真正的東亞梅雨季)
值得注意的是,迄今、未來一週等短期內,北方大氣高空依舊不見阻塞高壓,
這表示還是春末梅雨季大環境 - 屬於混亂的高空環境,
用一句話來說就如同春天後母心;
於是未來一週,
冷暖互換,每天都有機會下點雨,但又好像不太會。
(最近忙,簡單說說囉)
--
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